US Bridges

SW 120th Street over Black Creek Canal

Good

Miami-Dade County, Florida · At SW 157th Avenue · Structure no. 874237

Built
2005
20 years old
Condition
Good
inspected September 2024
Type
Slab
Concrete
Length
80 ft
3 main spans
Daily traffic
14,500
2024 count
Owner
County
County Highway Agency

About this bridge

SW 120th Street over Black Creek Canal is a concrete slab carrying SW 120th Street over Black Creek Canal in Miami-Dade County, Florida. It was built in 2005, so it is 20 years old, younger than the Florida average of 41.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 14,500 vehicles a day, roughly 4% of them trucks, projected to reach 22,765 by 2042. The structure is 80 ft (24.4 m) long and 80 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSW 120th Street
CrossesBlack Creek Canal
LocationAt SW 157th Avenue
RouteCounty Highway 0
StateFlorida
Coordinates25.65481, -80.44839
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.8 US tons
Inventory rating43 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadHL 93
Structure length80 ft (24.4 m)
Longest span32 ft (9.8 m)
Deck width80 ft (24.4 m)
Roadway width65 ft (19.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic14,500 (2024)
Projected traffic22,765 by 2042
Trucks4%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was SW 120th Street over Black Creek Canal built?

It was built in 2005, making it 20 years old in 2025.

What condition is SW 120th Street over Black Creek Canal in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.

How much traffic does SW 120th Street over Black Creek Canal carry?

About 14,500 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is SW 120th Street over Black Creek Canal?

The structure is 80 ft (24.4 m) long with a longest span of 32 ft (9.8 m) and a deck 80 ft wide.

Who owns SW 120th Street over Black Creek Canal?

It is owned by the County Highway Agency.